Home / 47,920.90-66,130.68-27,781.88

Finding the Fourth Proportional to 47,920.90, 66,130.68 and 27,781.88

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Solution

The fourth proportional to 47,920.90, 66,130.68 and 27,781.88 is: 38,338.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,920.90 : 66,130.68 = 27,781.88 : x
  2. Step 2: Convert to fraction form
    47,920.90/66,130.68 = 27,781.88/x
  3. Step 3: Cross multiply
    47,920.90x = 66,130.68 × 27,781.88
  4. Step 4: Simplify right side
    47,920.90x = 1,837,234,616.08
  5. Step 5: Solve for x
    x = 1,837,234,616.08/47,920.90
  6. Step 6: Final answer
    x = 38,338.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.